CN220390220U - Quick drawing of patterns formula injection mold - Google Patents

Abstract

The utility model discloses a quick demolding type injection mold, which comprises a bearing table, wherein a first sliding rail is arranged at the bottom end of the inside of the bearing table, a first reset spring is fixedly connected to the bottom end of the inside of the first sliding rail, a double-side rack is fixedly connected to the top end of the first reset spring far away from the first sliding rail, a second sliding rail is arranged on the upper side of the inside of the bearing table, a second reset spring is fixedly connected to the top end of the inside of the second sliding rail, the bottom end of the second reset spring is fixedly connected with the top end of the double-side rack, driven gears are respectively arranged on two sides of the double-side rack and are in rotary connection with the bearing table, the double-side rack is meshed with the driven gears through short side teeth and long side teeth, and a single-side rack is meshed with one side of the driven gears far away from the double-side rack. Through the mutual linkage among the double-side racks, the driven gear and the single-side racks, the reciprocating lifting of the ejection system is realized, and the purpose of ejecting a molded product and separating from a die is achieved.

Description

Quick drawing of patterns formula injection mold

Technical Field

The utility model relates to the technical field of plastic machinery industry, in particular to a quick demolding type injection mold.

Background

The injection mold is widely used in the manufacturing process of plastic products, and is an essential important device in the process of manufacturing plastic products.

By mounting injection molds of different specifications on an injection molding machine, molten thermoplastic or thermosetting plastic injected into the mold through a sprue gate can be made into plastic products of various shapes as required.

When the existing injection mold is used, after molten plastic is injected and cooled, the plastic is easy to adhere to the mold and is difficult to be stably sent out, and the plastic is required to be manually taken out by workers frequently, so that the time for demolding the plastic is increased, and the production efficiency of the whole production line is affected.

Disclosure of Invention

The utility model aims to provide a quick demolding type injection mold, which solves the problems that when the injection mold which is common in the market at present and is proposed in the background technology is used, after molten plastic is injected and cooled, the plastic is easy to adhere with the mold and is difficult to be stably sent out, a worker is often required to manually take out the plastic, the plastic demolding time is increased, and the production efficiency of the whole production line is influenced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a quick drawing of patterns type injection mold, includes the plummer, slide rail one has been seted up to the inside bottom of plummer, the inside bottom fixedly connected with reset spring one of slide rail, the inside top fixedly connected with two side racks of reset spring, slide rail two has been seted up to the upside of plummer inside, the inside top fixedly connected with reset spring two of slide rail two, the bottom of reset spring two and the top fixed connection of two side racks, the both sides of two side racks are provided with short side tooth and long side tooth respectively, the both sides of two side racks all are provided with driven gear, the inner wall rotation of driven gear and plummer is connected, the one end that two side racks were kept away from to short side tooth and long side tooth meshes with driven gear respectively, driven gear keeps away from one side of two side racks all is provided with unilateral rack, unilateral rack and driven gear intermeshing utilize the meshing between rack and the gear, realized through the operation to the connecting rod, control whole lifting system.

Preferably, two first sliding grooves are formed in the bearing table, the first sliding grooves are symmetrically distributed along the longitudinal center line of the second sliding rail, and the size of the top end of each sliding groove is larger than that of the bottom end of each sliding groove.

Preferably, the inside of spout one is provided with ejector pin one and ejector pin two respectively, ejector pin one and ejector pin two's top and bottom all extend to the outside of spout one, ejector pin one and ejector pin two's bottom and unilateral rack's top fixed connection, ejector pin one and ejector pin two's top is fixed with spacing piece, spacing piece is less than spout one opening size and is greater than the size of a section of thick bamboo part of spout, utilizes ejector pin two to be longer than ejector pin one's characteristic, has realized better ejecting effect to ejection system's efficiency has been improved.

Preferably, a second sliding groove is formed in the bearing table, the second sliding groove is located in the bearing table close to one side of the short-side tooth, a connecting rod is fixed to one side, away from the driven gear, of the single-side rack, and the connecting rod is sleeved in the second sliding groove.

Preferably, a die cavity is formed in the top end of the bearing table, and the die cavity is communicated with the first chute.

Preferably, a pouring module is arranged above the bearing table, and the bottom end of the pouring module is abutted against the top end of the connecting rod.

Preferably, a pouring gate and a pouring channel are formed in the pouring module, the pouring gate and the pouring channel are communicated with each other, and the pouring channel is communicated with the center of the die cavity.

Compared with the prior art, the utility model has the beneficial effects that:

the double-sided racks, the driven gears, the single-sided racks and the connecting rods are arranged in the bearing table, and the whole lifting system is controlled by operating the connecting rods through meshing between the racks and the gears;

the ejector rod I and the ejector rod II are arranged in the chute I, and a good ejection effect is realized by utilizing the characteristic that the ejector rod II is longer than the ejector rod I, so that the efficiency of an ejection system is improved;

by arranging the short side teeth, the long side teeth, the first reset spring and the second reset spring in the bearing table, the reset and limitation of the whole ejection system are realized by utilizing the elasticity of the springs and the asymmetric characteristics of the short side teeth and the long side teeth, and therefore the working efficiency of the equipment is improved.

Drawings

FIG. 1 is a schematic perspective view of a main body of the device of the present utility model;

FIG. 2 is a schematic diagram of the overall cross-sectional elevation of the present utility model;

FIG. 3 is a schematic diagram showing the overall working process of the present utility model in a cross-sectional elevation structure;

FIG. 4 is a schematic cross-sectional elevation view of the present utility model with the upper and lower portions fully abutted against each other;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4A according to the present utility model;

in the figure: 1. a carrying platform; 2. a first slide rail; 3. a first reset spring; 4. a double-sided rack; 41. short edge teeth; 42. long edge teeth; 5. a second slide rail; 6. a second reset spring; 7. a driven gear; 8. a single-sided rack; 9. a first chute; 10. a first ejector rod; 11. a limiting piece; 12. a mold cavity; 13. a second chute; 14. a connecting rod; 15. a second ejector rod; 16. pouring a module; 17. a sprue gate; 18. and (5) a pouring channel.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a quick drawing of patterns type injection mold, which comprises a plummer 1, wherein plummer 1 overall form is a rectangle square body, can support the spare part of whole device, plummer 1's inside is provided with the cavity, plummer 1 inside bottom has seted up slide rail one 2, the inside bottom fixedly connected with reset spring one 3 of slide rail one 2, wherein reset spring one 3 is located slide rail one 2's central point, reset spring one 3 top fixedly connected with two side racks 4, wherein reset spring one 3 is used for pushing and pulling two side racks 4, with this assistance two side racks 4's up-and-down motion, plummer 1 inside upside has seted up slide rail two 5, wherein slide rail two 5 and slide rail one 2's length equals, slide rail two 5 and slide rail one 2's diameter equals, slide rail two 5 and slide rail one 2's centre of a circle is located same vertical line, slide rail two 5 inside top fixedly connected with reset spring two 6, wherein the second return spring 6 is positioned at the center of the second slide rail 5, the lengths and diameters of the second return spring 6 and the first return spring 3 are equal, the bottom end of the second return spring 6 is fixedly connected with the top end of the double-sided rack 4, the upper end and the lower end of the double-sided rack 4 are respectively connected with the second return spring 6 and the first return spring 3, the double-sided rack 4 can be influenced by the telescopic action of the second return spring 6 and the first return spring 3 to move up and down, the two sides of the double-sided rack 4 are respectively provided with a short side tooth 41 and a long side tooth 42, the short side tooth 41 and the long side tooth 42 are not completely symmetrical, the short side tooth 41 is only present at the upper half section of one side of the double-sided rack 4, the long side tooth 42 is present at the upper half section of the double-sided rack 4, the short side tooth 41 and the long side tooth 42 are respectively symmetrically distributed at the left side and the right side, only long side teeth 42 are arranged at the lower half section of the double-side rack 4 without short side teeth 41, driven gears 7 are arranged on two sides of the double-side rack 4, the driven gears 7 are rotationally connected with the inner wall of the bearing table 1, one ends of the short side teeth 41 and the long side teeth 42, which are far away from the double-side rack 4, are respectively meshed with the driven gears 7, wherein the driven gears 7 on one side close to the long side teeth 42 are always meshed with the long side teeth 42, the driven gears 7 on one side close to the short side teeth 41 are meshed with the short side teeth 41 only when the double-side rack 4 is positioned at the lower side of the inside of the bearing table 1, the driven gears 7 are not meshed with the short side teeth 41 when the double-side rack 4 moves to the upper side of the inside of the bearing table 1 and do not rotate any more, one sides of the driven gears 7, which are far away from the double-side rack 4, are respectively provided with single sides racks 8, the single sides racks 8 and the driven gears 7 are meshed with each other, wherein the driven gear 7 and the unilateral rack 8 are always meshed with each other, the inside of the bearing platform 1 is provided with a second chute 13, the second chute 13 is positioned in the bearing platform 1 near one side of the short side teeth 41, one side of the unilateral rack 8 far away from the driven gear 7 is fixedly provided with a connecting rod 14, wherein the connecting rod 14 is arranged in an L shape, the connecting rod 14 is sleeved in the second chute 13, the diameter of the second chute 13 is slightly larger than that of the connecting rod 14, the top end of the connecting rod 14 extends to the outside of the bearing platform 1, when the connecting rod 14 is pushed by external force, the connecting rod 14 slides towards the inside of the bearing platform 1 through the second chute 13, the unilateral rack 8 connected with the bottom end of the connecting rod 14 is driven by the connecting rod 14 to move downwards together, the movement of the unilateral rack 8 drives the driven gear 7 near one side of the long side teeth 42 to rotate clockwise, due to the meshing between the driven gear 7 and the long side teeth 42, the rotation of the driven gear 7 drives the double-side rack 4 to vertically move upwards, the driven gear 7 on one side close to the short side tooth 41 is simultaneously driven to anticlockwise rotate by the movement of the double-side rack 4, the single-side rack 8 on one side close to the short side tooth 41 is driven to downwards move by the rotation of the driven gear 7, when the single-side rack 8 slides to the position where the short side tooth 41 is not meshed with the driven gear 7 any more, the driven gear 7 stops rotating, the single-side rack 8 connected with the single-side rack 8 stops sliding downwards at the same time, the driven gear 7 on one side close to the long side tooth 42 still rotates, the single-side rack 8 meshed with the driven gear 8 continues to downwards move until the top end of the connecting rod 14 completely slides into the second chute 13, when the connecting rod 14 is not pushed any more, the double-side rack 4 is pushed and pulled by the first return spring 6, the driven by the second return spring 3, the movement of the driven gear 7 drives the driven gear 7 on two sides of the double-side rack 4 to rotate together by the short side tooth 41 and the long side tooth 42, and the meshed single-side rack 8 moves upwards, and the meshed single-side rack 8 is driven to stretch out of the first ejector rod 10 and the second ejector rod 1.

The bearing table 1 is internally provided with two first sliding grooves 9, the two first sliding grooves 9 are symmetrically distributed along the longitudinal center line of the second sliding rail 5, the size of the top end of the first sliding groove 9 is larger than that of the bottom end of the first sliding groove 9, the first sliding groove 9 and the single-side rack 8 are arranged on the same vertical line, the inner part of the first sliding groove 9 is respectively provided with a first ejector rod 10 and a second ejector rod 15, the length of the first ejector rod 10 is smaller than that of the second ejector rod 15, the position of the first ejector rod 10 in the first sliding groove 9 is the same as that of the second ejector rod 15 in the first sliding groove 9, the top ends and the bottom ends of the first ejector rod 10 and the second ejector rod 15 extend to the outside of the first sliding groove 9, the bottom ends of the first ejector rod 10 and the second ejector rod 15 are fixedly connected with the top ends of the single-side rack 8, the circle center of the first ejector rod 10 is coincident with the circle center of the single-side rack 8, the position of the single-side rack 8 is opposite to the connected position of the single-side rack 8, the same position of the first ejector rod 10 relative to the connected single-side rack 8, the top ends of the first ejector rod 10 and the second ejector rod 15 are fixedly provided with a limiting piece 11, the limiting piece 11 is smaller than the opening size of the first chute 9 and larger than the size of the straight barrel part of the first chute 9, when the single-side rack 8 in the bearing platform 1 is driven to move upwards by the driven gear 7 along with the downward sliding of the connecting rod 14, the first ejector rod 10 and the second ejector rod 15 move downwards along with the single-side rack 8, when the driven gear 7 and the short-side gear teeth 41 are not meshed any more due to the movement of the double-side racks 4, the single-side rack 8 connected with the first ejector rod 10 stops moving downwards, at the moment, the limiting piece 11 connected with the first ejector rod 10 is clamped into the opening of the first chute 9, so as to prevent the first ejector rod 10 from falling into the bearing platform 1, the driven gear 7 close to one side of the long-side gear teeth 42 still rotates, the single-side rack 8 meshed with the first ejector rod 15 continues to move downwards until the top end of the connecting rod 14 completely slides into the second chute 13, and the limiting piece 11 connected with the second ejector rod 15 is clamped into the opening of the first chute 9, so that the first ejector rod 10 is prevented from falling into the bearing table 1.

The top of the bearing table 1 is provided with a die cavity 12, the die cavity 12 is shaped into a product to be poured, the die cavity 12 is used for receiving and condensing molten plastic to be poured into the die cavity 18, the plastic is made into the required shape, the die cavity 12 is communicated with the first chute 9, the first ejector rod 10 and the second ejector rod 15 extend out of the first chute 9, the condensed plastic is ejected out of the die cavity 12 and separated from the die, a pouring module 16 is arranged above the bearing table 1, the bottom end of the pouring module 16 is abutted with the top end of the connecting rod 14, the bottom end of the pouring module 16 moves the pressing connecting rod 14 downwards, a pouring opening 17 and a pouring channel 18 are formed in the pouring module 16, the molten plastic is poured into the pouring channel 18 through the pouring opening 17, the pouring opening 17 and the pouring channel 18 are communicated with each other, the pouring channel 18 is communicated with the central position of the die cavity 12, the molten plastic falls into the die cavity 12 through the pouring channel 18 and fills the pouring channel 18 with the die cavity 12, after the pouring module 16 moves downwards, the pressing connecting rod 14 moves downwards together with the pouring channel 14, a lifting system inside the bearing table 1 is driven by the connecting rod 14, the pouring opening 10 and the second ejector rod 15 is completely fills the die cavity 12 into the die cavity 12 through the pouring channel 16, and the first chute 10 and the first chute 11 and the second chute 16 completely fills the molten plastic into the die cavity 16, and the die cavity 16 completely fills the molten plastic into the die cavity 12 through the die cavity 16, and fills the die cavity 1 into the die cavity 12, and fills the cavity 1.

Working principle: when the injection mold is used, the casting module 16 is firstly controlled to move downwards, the casting module 16 can press the connecting rod 14 to move downwards together, the connecting rod 14 slides towards the inside of the bearing table 1 through the second chute 13, the single-side rack 8 connected with the bottom end of the connecting rod 14 is driven to move downwards together by the connecting rod 14, the single-side rack 8 moves to drive the driven gear 7 close to one side of the long-side tooth 42 to rotate clockwise, the driven gear 7 is meshed with the long-side tooth 42, the driven gear 7 rotates to drive the double-side rack 4 to move upwards vertically, the driven gear 7 close to one side of the short-side tooth 41 is simultaneously driven to rotate anticlockwise, the driven gear 7 rotates to drive the single-side rack 8 close to one side of the short-side tooth 41 to move downwards, when the single-side rack 8 slides to the short-side tooth 41 and the driven gear 7 are not meshed any more, the driven gear 7 stops rotating, the single-side rack 8 connected with the driven gear 7 stops sliding downwards at the same time, the driven gear 7 close to one side of the long-side tooth 42 still rotates, the single-side rack 8 meshed with the driven gear 8 continues to move downwards until the top end of the connecting rod 14 completely slides into the sliding groove II 13, finally the first ejector rod 10 and the second ejector rod 15 completely enter the sliding groove I9, the limiting piece 11 is clamped into the opening of the sliding groove I9, the loading table 1 and the pouring module 16 are completely attached, molten plastic is poured into the die cavity 12 from the pouring opening 17 through the loading table 1, the die cavity 12 and the pouring channel 18 are finally filled, after the molten plastic is condensed, the pouring module 16 is lifted to expose the condensed plastic, at the moment, the connecting rod 14 is not pressed by the pouring module 16, the double-side rack 4 is pushed and pulled by the second return spring 6 and the first return spring 3 to move downwards, the motion of the double-sided rack 4 drives the driven gears 7 on two sides of the double-sided rack 4 to rotate together through the short side teeth 41 and the long side teeth 42, and the rotation of the driven gears 7 drives the engaged single-sided rack 8 to move upwards, so that the ejector rod I10 and the ejector rod II 15 extend out of the bearing table 1. So that the condensed plastic is ejected out of the mold cavity 12 and out of the mold.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a quick drawing of patterns type injection mold, includes plummer (1), its characterized in that: slide rail one (2) have been seted up to the inside bottom of plummer (1), the inside bottom fixedly connected with reset spring one (3) of slide rail one (2), the inside top fixedly connected with two side racks (4) of reset spring one (3), slide rail two (5) have been seted up to plummer (1) inside upside, the inside top fixedly connected with reset spring two (6) of slide rail two (5), the bottom of reset spring two (6) and the top fixed connection of two side racks (4), the both sides of two side racks (4) are provided with short side tooth (41) and long side tooth (42) respectively, the both sides of two side racks (4) all are provided with driven gear (7), the inner wall rotation connection of driven gear (7) and plummer (1), the one end that two side racks (4) were kept away from to short side tooth (41) and long side tooth (42) meshes with driven gear (7) respectively, driven gear (7) are kept away from one side of two side racks (4) all to be provided with unilateral rack (8), unilateral rack (8) and driven gear (7) intermesh each other.

2. The rapid release injection mold of claim 1, wherein: the bearing table is characterized in that two first sliding grooves (9) are arranged in the bearing table (1), the two first sliding grooves (9) are symmetrically distributed along the longitudinal center line of the second sliding rail (5), and the top end of each first sliding groove (9) is larger than the bottom end of each first sliding groove (9).

3. The rapid release injection mold of claim 2, wherein: the inside of spout one (9) is provided with ejector pin one (10) and ejector pin two (15) respectively, ejector pin one (10) and ejector pin two (15)'s top and bottom all extend to the outside of spout one (9), ejector pin one (10) and ejector pin two (15)'s bottom and unilateral rack (8) top fixed connection, ejector pin one (10) and ejector pin two (15)'s top is fixed with spacing piece (11), spacing piece (11) are less than spout one (9) opening size and are greater than the size of the straight section of thick bamboo part of spout one (9).

4. The rapid release injection mold of claim 1, wherein: the inside of plummer (1) is provided with spout two (13), spout two (13) are located plummer (1) inside near short side tooth (41) one side, one side that driven gear (7) was kept away from to unilateral rack (8) is fixed with connecting rod (14), connecting rod (14) cover is established in the inside of spout two (13).

5. The rapid release injection mold of claim 1, wherein: the top end of the bearing table (1) is provided with a die cavity (12), and the die cavity (12) is communicated with the first chute (9).

6. The rapid release injection mold of claim 1, wherein: the top of plummer (1) is provided with pouring module (16), the top butt of bottom and connecting rod (14) of pouring module (16).

7. The rapid release injection mold of claim 6, wherein: a pouring opening (17) and a pouring channel (18) are formed in the pouring module (16), the pouring opening (17) and the pouring channel (18) are communicated with each other, and the pouring channel (18) is communicated with the center of the die cavity (12).